utimer.h File Reference

User-mode timer synchronization primitive. More...

#include "wait.h"

Go to the source code of this file.

Data Structures
struct	UTimer
	User-mode timer object. More...

Enumerations
enum	TimerType {   TimerType_OneShot ,   TimerType_Repeating }
	Valid types for a user-mode timer. More...

Functions
static Waiter	waiterForUTimer (UTimer *t)
	Creates a waiter for a user-mode timer.
void	utimerCreate (UTimer *t, u64 interval, TimerType type)
	Creates a user-mode timer. More...
void	utimerStart (UTimer *t)
	Starts the timer. More...
void	utimerStop (UTimer *t)
	Stops the timer. More...

Detailed Description

User-mode timer synchronization primitive.

Author

plutoo

Copyright

libnx Authors

Enumeration Type Documentation

TimerType

enum TimerType

Valid types for a user-mode timer.

Enumerator
TimerType_OneShot	Timers of this kind fire once and then stop automatically.
TimerType_Repeating	Timers of this kind fire periodically.

Function Documentation

utimerCreate()

void utimerCreate	(	UTimer *	t,
		u64	interval,
		TimerType	type
	)

Creates a user-mode timer.

Parameters

[out]	t	UTimer object.
[in]	interval	Interval (in nanoseconds).
[in]	type	Type of timer to create (see TimerType).

Note

The timer is stopped when it is created. Use utimerStart to start it.

It is safe to wait on this timer with several threads simultaneously.

If more than one thread is listening on it, at least one thread will get the signal. No other guarantees.

For a repeating timer: If the timer triggers twice before you wait on it, you will only get one signal.

utimerStart()

void utimerStart

(

UTimer *

t

)

Starts the timer.

Parameters

[in]

t

UTimer object.

utimerStop()

void utimerStop

(

UTimer *

t

)

Stops the timer.

Parameters

[in]

t

UTimer object.